Bag or liner spreading device.



' A. JOPLIN. BAG 0Rl LINER sPRBADNG-DBv1GE.

ApPLIcATIoN FILED mm2, 1911. 4 fPatented Oct. 31,1911.

' 2 SHBETS- SAB'LET- x.

W. A. JOPLIN. BAG 0R LINER SPREAADING DEVICE. APPLIGAUON FILED $11.2,1911.

1,007,358, Patented 0615.31, 1911. 4 l 4 I l lzsHEETS-'snzmva .i Amaaiensfrarns PATENT oem@ WILLIAM. A. 'J'OPLI N, OF LAWRENCE, MASSACHUSETTS,ASSIGNOR- T0 IPNEUMATIC SCALE CORPORATION LIMITED, OF QUINCY,MASSACHUSETTS., A CORPORATION F MAINE. y

To all 'whom :it may concern: i

` a citizen ofthe United States Be it known that. LlViLLiAii A. JorniN,

, residing at Lawrence, in the county of Essex and State of4llfassachuse'tts, have invented a ertainnew. and useful Improvement inBag or Liner Spreading Devices, of which the. folf lowing is aspecification, reference being had therein to the-accompanying drawings.

In putting up package goods by machines paper cartons are veryextensively used for the package, and for'cei'tain classes of goods Aitis important to have a'lining for the car'- ton. The cartons usuallycome. in knocked down form andare usually set up one at a time as theyare to be filled. In many cases it is the practice to insert the liningby hand after the carton is set up just before filling.

When the lining isirst put into' the carton,

if done by hand, its sides will bulge in, and

it is important to have the lining squared out 'to closely fit theinterior of the carton before the goods are delivered into it 'from thehopper. Sometimes paper bags are employed instead ofrartons and whensuch are used they should be opened out when positioned to receive thegoods from the hopper or other feed device.

The object of the present invention is to provide an attachment to thefilling machine whereby the paper receptacle whether.` a

paper lining or a paper bag. as the case may be, will. be opened orspread lout into proper shape before the material is delivered to it andwhereby theopening of thesp reader :controls the delivering of'ma'terialinto the carton as well as spreads the lining. The invention .will befully understoof from the following descriptionta'ken in connection withthe accompanying drawings and the novel features will be pointedoiit andclearly defined in the claims at the close of the specification. j i

not form a part of the present invention. l.

Fig. 2 is a front elevation of the lower porj partly opened out.

In the drawings,-Figure 1 is 'a `sideele vation of a hopper of a fillingmachine having attached thereto bag opening mechanism BAG on' LINERSPREADING Davies..H

l Specification of Letters latent. Patented Oct. 31, 1911. ApplicationledriFebruary-2, 1911. Serial No. 606,190. 1

view of a carton -withthe lining inserted before .it is. squared out .bythe spreader. t is a side view showingthe spreading wings about'to.enter into the carton and Referring now'to the drawingsf-l is thehopper through which the material is delivered to the package. yAttachedto two opposite sides of the lower part of the-hopper' are twodownwardly extending side plates 2.'

The outer edges of each of these-side plates 2 have outwardly flaringportions 'toward the lower ends-which form cam surfaces for the purposeto, be hereinafter described.

',Preferably'the lower portion .4 below the cani surfaces 3 is straight.A lever .5 is ful'crumed intermediate its ends? at '6 toa.

'hanger 7 which depends from a stationary v.support 8. One arm of saidlever ,5 is pro.

vided with a roller 27 which engages with a cani 9 mounted on a shaft 10and the other arm of said-lever is pivotally connected at 11 with" anupright. portion 12 of a 'crosshead 13. A spring 24 holds the roller 27in constantengagement withthe Cain. Preferably there are two of thesecross-heads and levers, one on the outer side of each off-fthe two sideplates 2. Between the two side plates 2, 2, are the two downwardlyextendingwing plates 14, 14, which are pivoted-,to the crosssheads13,13, and are wide enough to close the entire width of tlie'space be--tween the two side plates 2, 2, so thatthe two side plates and t-he twowing plates together form a Vfour-sided chute or mouthpiece for thehopper. The wing plates are so controlled that normallyfthey convergedownwardly until theirlower ends are in contact with eachother thereby.closing the lower end ofthe. 'passage-between the side I plates2,2. i

As shown inthe .drawings the means for pivoting the twowings .1'.1';14`is to foriii'- each of them with a pair of eaPs 15, one at" g eachledge neartlie upper end. -A .shaft 16 extends-acrossthe full width ofeach wing and extends through both ears 15 of the wing so that the wingis pivoted thereon.

Each of said plates also has V'another pair of ears 1T projectingoutwardly therefrom at some point below the iirst pair ots-aid ears l5.Connecting each pair of ears 1T on each wing is a. shaft 1S carrying aroller lt) which'engages' the outer edge of the. side plate 2` A spring20 connects the two shafts 15,18, together' and the tension of thespring issutlicient to -retain the two rollers ll), lJ, in Contact withthe outer edges of the plates 2, Preferably the upper ends of the wingplates 14, 14 are curved upwardly and outwardly.

The upwardly extending varm 12 of each cross-head 13 is formed with-avertical slot 2l."l Two pins'22, 23, one above the other, project fromeach of the sides plates 2 outwardly through the slot 21 forming guidesfor the cross-head.

gl The shape of the cam 9 is such that'afterthe high partof the camwhich' is shown in Fig. i as in contact with the roller 27, turnssoF-thatt-he lower part'of the cam comes in contact with the roller, thelever 5 will bef-turned on its fnlcrum by the spring 24 25 land thecross-heads 13 will be moved downward. As the cross-headsmove downward'the rollers 19 engage lwith the cam edges f 3 of the side plates 2thereby spreading or opening out the lower ends of the wings 14 as thewings 41&1 are carried down by the cross-heads. The lcarton 25containing the lining 26 which will previously have been positioned 'umbelow the side plates 2 will be; in posiiion for the lower ends of thewings 14 to enter the lining while the wings are still intheirconverging positions and' as; the wings are carried down andspreadapart they will spread open the lining'of the carton until the wings arespread out into (par-alici position, as shown by the dotto linesin'h`ig,.v 1, which is the limit offtheir outward spread; During the'latter part of. the downward movement of the cross-heads the rollers 1 9will engage the lower straight edges`of the side -plates 2 and. the wingplates will then move down parallel with each other. Preferably theplates should be so proportioned with reference to the bags or cartonswhich are used that when the wings 14, are in their spread out parallelposit-ion they will lne/opened just sufficient lto spread Iopen* thelining to the yfull lwidth of the carton.

:A paper bag# which may be used aslthe package or container without anycarton may-'be opened inthe same way' as described for o ening thelining, if `properly lsup- '.,zpote Vin an upright/position beneath thespreaders. f

-v !.lhe cam shaft 10 may be rotated by any suitable mechanism and it.is not deemed necessary to 'show' any' particular driving` f meanstherefor.

opposite edges of said plates having down- Awardly diverging portions,two movable plates forming two opposite sides of the funnel between saidparallelsides, a vertically' movable head to which said movable platesare pivoted, means for vertically reciproeating said head and saidmovable.

plates, means for normally holding said Amovable plates convergingtoward each other'downward when said head is in its uppermost positionthe downward movement of the head causing the descent-of said movableplates and means connected with the 'movable plates which engage saiddiverging edges of the side plates thereby spreading apart theconverging ends of the movable plates.

2. A hopper funnel having two parallel downwardly. extending sides, twosides ,forniing two opposite sides of the funnel between said parallelsides bridging the space between them and movable vertically withrelation-thereto, a vertically movable head to which said movable sidesare piv-- oted, means for normally holding said movable sides convergingltoward each other downward to close t e outlet passage between saidfixed-sides, means -for vertically reciprocating said head and themovable' sides pivoted thereto with relation -to thesaid fixed parallelsides and means for causing the lower ends of said movable side's tospread apart from eachother.

A. funnel having'one pair of opposite sides which. are fixed apart withrelation to each other and another pair of opposite sides whichvare-movable vertically withl relation. to said fixed sides and normallyconverge together at the lower ends between the first pair of sides andclose the outlet end of the funnel 'and means for moving saidconvergingSides bodily downward withv relation tothe ixed'sides and separate meansfor spreading the converging ends apart below the lower ends of thefixedpair of sides.

LA funnel having one pair of downwardly extending parallel sides fixedwith relation to each other and a pair of downwardly extending movable,sides betweenl said'pair of fixed sides which normally convergedownwardly and close vthe outlet end of the funnehsaid movable sidesbeing movable bodily downward with relation to the fixed sides, meansfor moving said converging V'sides downward with relation to the fixedsides and means for spreading the converging ends apart.

5.'A .hopper funnel having two 4downwardly extending fixed sidesparallel with other,

Y sides between said two form twofoppos'ite sides of the movablefsideson apart the converged loweraends.

and o posite: each other, -two downwardly extending movable sidesbetween said two fixed sides and of a uniform width to bridge the spacebetween said fixed parallel sides, said movable sides being fulcrurned'to a support movable vertically with relation-to said parallel sidesand the lower ends normally-eonverging to a meeting line to close the.passage between said parallel sides,

means for moving said fulcrumand movable sides downward andmeans forturning vsaid their fulcrum to spread 6.^A-ho-ppe'r.'funnel hating twodownwardly extending'fixed s id'esopposite each two downwardly'extending movable fixed sides' and of a width-to close the spacebetween said fixed sides,- said movable sidesbeing pivoted to a support.which is vertically movable with p1 relatio'n'to said iilxed sidesthe""low er ends of the movable sides'no'rmally converging to a meetingpoint'to close the outlet from the lowerend of-the 4fined sides, meansfor turning said-movable sides and means forcausing tl1 walls .andfulcriu'n ing spreadapart;

7;,A` `hopper funnel having -two downwardly extending fixed side wallswhich funnel, two downwardl between said two'iixed side wfalls of awidth to 'close the space between said fixed walls, said movable'wallsfbeing pivotcd to a supportv which is vertically movable with relaltion to said fixed ,Walls the lower ends of the cally movabl limovable,= walls normally converging to a meeting point to close theoutlet, means for turning saidV movable walls on their ful- -erum tov`spread apart the converged lower ends,

l means. for 'causing the said fmovable walls and fulcrum to descendwhile they-are,

. being spreadi'apart, the lowerends of said movable Walls descendingrto some 'fdistai'ice below the 4lower "ends ofthe ixedwalls and meansfor causing said movable walls to assume :parallel 'f'relatiori to eachother dur- 50' ingthe latter part ofthe deseen# 8. Ahopper"funnelhcomprisingtwo parallel downwardly extending .plates whichAform two oppositefisides of the funnel, the opposite edges wardlydivrgi' tvo;oppositesidesjofwthel funnel Bew gsaidparanei Sides, verri;

ta-ovaie salidas ab.V plates aiefpivoted2- means for vertical y resclp'rocatigrig` saidheadfand said movable' plates, 'arms 'projectingfiom' said finova'ble plates having rollers which engage wi-th' ltheouter edges" ofi said 'walll plates,-`

their -fulcrunr to spread apartthe converoed lower ends, said n'iovable.

to descend while they are extending movable side walls ald plateshaving. down- .4 po' tions,l two 4nfiovable .4 guides in constant `outeredges of the p means, for normally holding said movable platesconverging toward each other downward when said head is in its`uppermost p bi" sition and for holding said rollers in con-4 A with theouter edges' of the parallel side plates,v the downi'vard movey ment ofthe head causing the descent of said .movable plates and causing thesaid rollers to ridedown on the diverging edges of the si'de platesthereby verging ends of the movable plates.

'9 ,A hopper funnel comprising two pari l alle'l downwardly extendingplates which` spreading apart the conform' two opposite sidesof thefunnel, the

opposite edges of said plates havingdown-- wprdly diverging portions,tivo movable p ates forming two opposite sides of the tmnelbetween saidparallel sides, a vertially movable head to which said movable ates arepivoted, means for vertically reciprocating said -head vand said movableplates, guides carried by said movable plates which engage with theouter edges of said parallel .wall plates, means for normally' platesconverging,r toward e'ach -other downward when saidv holding 'saidmovable head is initszuppermost position and'for ,holding said guides inconstant engagement willi'l the outer plates, the downward movement ofthe headV edges of the parallel side cau"s ing the descent of saidmovable plates and causing the said guides to ride doivn on the.diverging edges of t-he'side plates therebyfspreading apart theconverging ends of', the movable plates, said parallel sideplateslhaving straight parallel edges belowV nel between saidparallel-sides, a vertically movable head to which said movable platesare pivoted, means for vertically reciprocatl' ing said head and said.movable plates, guides carriedby said movable plates which 4engage'withthe outer edges 'pf said parallel wall plates, means for normallyholding` said movable plates converging toward each other downward whensaid head is in its uppermost position and"forholdin,g said engagementwith the rallel side plates, the downwardmovemerrtfof the head causing.the descent said? movable lplates and causingthe' said guides to ridedown on the -dive'rging edges oit the side plates 'thereby two movable.

.spreading apart the converging endsliof the' movable plates, saidparallel side plates having straight parallel edges below said divergingportions with which said guides engage after-.the guides ride ofi' ofthe said divergent portions and vholding said movable side plates inparallel relation to eachy other,tl1e lower ends of said movable plates'descending down below the lower end 'of said fixed parallel plates.

Il. A funnel having two opposite lsides, fixed apart with relation toeach other,two other opposite sides which 'lie between said -xedsides atright angles thereto'and which extend across between said fixed sidesand normally converge toward each other downward and .close'the outletfrom the lower end between said fixed sides, means for verticallyreciprocating said movable sides' with relation to said fixed sides,meansfor causing the said movable sides to dwell at the end of eachstroke, means for spreading the converging ends apartirom each other onthe downstroke and means for f bringing said movable sides intoconverging relation again on' the up stroke.

l2. In combination with a hopper, fun` nel attached to the lower endthereof having two opposite side walls which extend downward parallelwith each other, a vertically reciprocable frame having .a cross-headalongside of each of said fixed side walls,

. movable walls pivoted to said cross-heads and extendingr across thespace between said two fixed walls, means for normally holding said twomovable walls with their lower ends in 'converging engagement with eachother, the outer edges of saidiixcd walls having downwardly divergingportions terminating in downward parallel portions, guides attached tosaid movable walls and engaging with the outer edges of said fixedwalls, means for vertically reciprocating said frame and cross-head witha dwell at Y eachend of the stroke, said guides for the movable wallsriding down o n the diverging edges of the xed walls and thence onto'the parallel edges of the fixed walls on the downwardstroke therebyspreading the converging ends of the movable walls until r they assume a-parallel relation with each other and project below the lower vends ofthe fixed walls and means for bringing said movable walls intoconverging relation again on the up stroke. 1

13. A funnel for a hopper havingtwo par'-l allel sides, two movablewings which extend crosswise between said parallel `sides and convergedownward to a meeting edge crosswise between said parallel sides, saidwings being vertically movable with relation to said fixed sides, meansfor moving said wings down while the parallel sides are sta- 'tionaryand means for spreading said wings and thereby opening 'the dischargefrom the -tunnel.

14. In combination with a hopper, a discharge funnel connectedtherewith, said funnel having two stationary' parallel sides, twomovable wings which'.extend crosswise between said parallel sides andwhich nor-A 5 mally converge together to a meeting edge above the lowerends, of said parallel sides to close theoutlet from the funnel, meansfor causing said entire movable wings to descend with relation to thestationary parallel sides until the lower ends extend below the lower.end of said parallel`sidesand v means for spreading said wings apartfrom each other, said wings alsojjbeing adapted to enter and spread4 abag or rbox lining positioned beneath the funnel.

15. A hopper funnel comprising two parl allel downwardlyextending-plates which form two opposite sides of the funnel, the

opposite edges of said plateshaving downwardly diverging` portions; twomovable lplates forming two opposite sides of the -funnelA between saidparallel?` sides, a vertically movable head to which said movable platesare pivoted, means for vertically reciprocating said head and'saidmovable plates, guides carried by said movable plates which engage withthe outeriedges of said parallel wall plates, means for normally holdingsaid movable plates converging toward each other downward when saidhheadis in its'uppermostposition and forfliol'ding i said guides in constantengagementwith the outer edges of the parallel side plates, the

4'downward movement of the headzi causing .alongside of each of'saidfixed sidewalls,

movable walls pivoted to said cross-heads and Vextending across thespace between said two lfixed walls, means for normally holding Y.saidtwo movable walls with their lower -ends in converging engagement witheach other, guides attached-to saidmovable walls,

diverging fixed guides with which said movable guides engage, means forvertically reciprocating said frame and cross-headwith a dwell at eachend of the stroke, said guides for t/he movable walls riding down on thediyerging fixed guides on the downward stroke thereby s reading the.converging ends ofthemovalile walls.

17. A funnel havlng` one pair of downwargily extending sides fixed apartwith relation to -each other, a pair of downwardly extendingmovableplates between'sai@ pair of fixed sides which normally converge towardeach other downwardl said movable plates being movable bodily downwardwith relation to Said xed sides, means for moving said converging platesdownward bodilyl with .relation to said fixed sides and means 10 forspreading the converging ends apart.'

In testimony whereof I ax my signa ture, in presence of two witnesses.

Wm; A. wenn.,

Witnesses: d A

WMM A. omhelzing, Amon H. Mo

